Screw driver, brace, and the like



/A/I/A/TOR J. J. DOHERTY.

SCREW DRIVER, BRACE, AND THE LIKE.

FILED NOV 9,192]

Jan. 9, 1923.

ldatented nlain. d,

w l l l m time o JAIWES JOSEPH DQHER'ZY, U33 LUNIDDND'ERRY, "JERETAAND.

Application filed November 9, 1921. Serial Itl'o. 514mm.

and useful. improvements litelatinp; to Screw Drivers Braces, and the like. of which the ttollowingr is a specification.

Tllhis invention relates to screw drivers, braces, and the like devices, for driving aw-s, boring tools, andthe like.

lnder this invention. a screw driver, brace, m the like device, is rni'ovided with means whereb the member to be operated on by the tool is held in pro ier position in relation to the tool, while the latter is being; operated, and means may also be provided tor relea ing; the device from engagement with the tool when required.

'llhe invention may be carried out in vs rions ways, and the accompanying drawings illustrate some examples of carrying the invention into eliect in connection with a screw driver.

Figs. 1 and 2 are elevations at rig it anv'les to each other ot' a screw driver provided ith a screw holding device in accordance with the invention.

r-it Figs. 1 and 2 the screw holding device shown in open position.

l 3 is a similar view to 1, showing the device in the closed position with a screw held by the spring jaws and engaged by the screw driver.

Figs. 4- and 5 are elevations at right angles to each other ot a modification of the device in which the jaws are so made to securely hold. the head of: the screw, as shown in Fig. 6, which. is a similar view to Fig. 3. Tn this case a sliding sleeve shown in Figs. 1 to 3 is replaced by a spring clip whereby the jaws of the device can be caused to hold a screw as shown at Fig. 6, or be released for opening to the position shown at Figs. i and 5 as and when required.

Figs. 7 and 8 show the top of the form of device as shown at Figs. 1 to 3.and provided with slots at the sides of the jaws into which the head of the screw can enter. These slotted jaws have the effect of more securely holding the screw in position than the jaws shown in Figs. 1, 2 and 3, and also prevent it tilting.

Referring to the drawings Tn the example shown Figs. 1 to 3 the device comprises two spring metal bands 1. 5 and 2 connected at their inner ends to a sleeve 3 and at their other ends made with and 5. A sleeve 6 embraces the hands slidable relatively thereto. The sleeve 3 its over the end of a screw driver 7 as shown l and 2. By sliding the sleeve (3 towards the front of the screw driver the jaws 2 and are forced towards each other, and will grip a screw or other lil-ze ineinber placed between them, as for example, the screw 8 shown in llig. 3. The sleeve (3 can be held forward as long as the screw driver is being operated for the drivinn; or withdrawing oi. a screw, and the .grip he jaws 2 and on the screw 8 can be o instantly released by pulling back the sleeve 6. it projection 15 on the sleeve 6 causes the jaws at and 5 to come into position to receive the screw.

At Figs. 4, 5 and 6, the sleeve 6 is replaced by a springclip 9, which, by depressing the lever 10 is forced against the bands 1 and and thereby causes the jaws of the device to close on screw or lilre member placed between them. Tn the example shown at Figs. 4:, 5 and 6, the j aws are roads with tongues ll and 12 and on these tongues the head of the screw can rest, the her of the screw being held between the jaws 8 and l and the tongues 11 and 12 shown at 6.

The jaws shown at Figs. 1 to 3 may, as shown at Figs. 7 and 8, be made with slots 13 and is adapted to receive the sides oi? the head of the screw as shown. The tongues 11 and IQshown at Figs. l to 6, and the slots 13 and 14%. shown at l igs. 7 and 8, assist in preventing any tilting of the screw when it is pressed against the article into which it is to be inserted.

The sliding sleeve 6 may be arranged to engage a projection, or proje tions, 0n the bands 1 and 2 so that the sleeve 6 moves back in releasing the jaws from engagement with the screw, it will also move the jaws clear of the point of the screw driver so that the screw can be forced fully into any article into which it is being driven.

"While the device has been described in relation to a screw driver and screw, it is of course equally applicable to a bit, or equivalent.

At Figs. l, 5 and 6 a pin 16 is shown projecting from the lever 10. W hen this pin 16 is pressed back by Contact with the sueface into which the screw is hemp; inserted 1t Wlll cause the lever 10 to be operated to release the jaws at and 5 from the screw.

The device is simple. and its use greatly facilitates the work 01'"? inserting or withdrawing screws, or using a boring tool. or equivalent, either with an ordinary screw driver, or with a brace.

Having now fully described my invention, what I claim to secure by Letters Patent is 1. The combination with a screw driver or" a screw holding implement. including spring arms slidably mounted a unit on the screw driven-the terminals of said arms being inturned and divided longitudinally, the respective divisions being spaced apart to provide relatively or set upper and lower engaging members for the head of the screw, and means for operating said arms, whereby said interned ends may be forced toward each other or permitted to syn-na l apart thrn their inherent lGS]llC1](2 2. lhe combination with a screw driver of a screw holding: implement, including;

spring arms slidably mounted as a unit on the screw driver. the tar ninais o'l said arms being inturned and divided longitudinally. 

